| 초록 |
The self-assembly of block copolymers (BCPs) can easily form ordered nanostructures such as sphere, cylinder, gyroid and lamella. These nanostructures are used variously as drop delivery, catalyst, energy storage and electronic sensor. Electrochemical techniques fabricated from block copolymer thin films offer simplicity, rapidity, relative low-cost and high-sensitivity. In this work, we blended poly(styrene-b-ethylene oxide) (PS-b-PEO) and poly(styrene-b-methyl methacrylate) (PS-b-PMMA) to make well-ordered nanopattern. The blends of BCPs are spin-coated on Au substrate and solvent-annealed to fabricate cylinder nanostructures perpendicular to the substrate. The cylinder nano domains were removed and then obtained nanoporous structure. To applicate the fabricated nanofilm as an electrochemical sensor, the carboxylic acid of removed PMMA domains was functionalized. The morphologies of the films were characterized by AFM and TEM. Electrical signal was detected by CV measurement. |
